Bioactive coating on titanium using calcium-containing methylsiloxane

Yasuto Hoshikawa; Eiichi Yasuda; Takamasa Onoki; Masaru Akao; Yasuhiro Tanabe

doi:10.1016/j.surfcoat.2008.07.027

Bioactive coating on titanium using calcium-containing methylsiloxane

Yasuto Hoshikawa, Eiichi Yasuda, Takamasa Onoki, Masaru Akao, Yasuhiro Tanabe

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

A bioactive coating of Ca-containing methylsiloxane on a titanium surface was investigated. The coatings have double-layered structure consisted of underlying methylsiloxane (MS) and with an incorporated Ca content methylsiloxane (MS-Ca) top layer. The top layer of MS-Ca was prepared from methyltriethoxysilane containing 2.5 mol% pentaethoxyniobium and 2.5 mol% pentaethoxytantalum followed by the addition of calcium nitrate tetrahydrate with the Ca/Si molar ratio of 0.05 to 0.5 to enhance the formation of bone-like apatite (BLA) in a simulated body fluid (SBF). The adhesive strength of the coating with a 0.05 Ca/Si ratio was 3.5 MPa, while the adhesive strength of the coating tended to decrease to 2 MPa with the increasing Ca content. The adhesive strength of the coating was related to the porosity, which depended on the Ca content.

Original language	English
Pages (from-to)	52-58
Number of pages	7
Journal	Surface and Coatings Technology
Volume	203
Issue number	1-2
DOIs	https://doi.org/10.1016/j.surfcoat.2008.07.027
Publication status	Published - 2008 Nov 25
Externally published	Yes

Keywords

Adhesive strength
Bioactive coating
Bone-like apatite
Methylsiloxane
Methyltriethoxysilane
Sol-gel method

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/j.surfcoat.2008.07.027

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title = "Bioactive coating on titanium using calcium-containing methylsiloxane",

abstract = "A bioactive coating of Ca-containing methylsiloxane on a titanium surface was investigated. The coatings have double-layered structure consisted of underlying methylsiloxane (MS) and with an incorporated Ca content methylsiloxane (MS-Ca) top layer. The top layer of MS-Ca was prepared from methyltriethoxysilane containing 2.5 mol% pentaethoxyniobium and 2.5 mol% pentaethoxytantalum followed by the addition of calcium nitrate tetrahydrate with the Ca/Si molar ratio of 0.05 to 0.5 to enhance the formation of bone-like apatite (BLA) in a simulated body fluid (SBF). The adhesive strength of the coating with a 0.05 Ca/Si ratio was 3.5 MPa, while the adhesive strength of the coating tended to decrease to 2 MPa with the increasing Ca content. The adhesive strength of the coating was related to the porosity, which depended on the Ca content.",

keywords = "Adhesive strength, Bioactive coating, Bone-like apatite, Methylsiloxane, Methyltriethoxysilane, Sol-gel method",

author = "Yasuto Hoshikawa and Eiichi Yasuda and Takamasa Onoki and Masaru Akao and Yasuhiro Tanabe",

note = "Funding Information: This work was supported by a Grant-in-Aid for Cooperative Research Project of Nationwide Joint-Use Research Institutes on Development Base of Joining Technology for New Metallic Glasses and Inorganic Materials and was partially supported by a Grant-in-Aid for Young Scientists (B), 18760516, 2006, from The Ministry of Education, Culture, Sports, Science and Technology, Japan. The authors appreciated Mr. Hajime Ishii from the technical staffs of MSL for his help with the setup utilized by the Collaborative Research Project of Materials and Structures Laboratory, Tokyo Institute of Technology.",

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T1 - Bioactive coating on titanium using calcium-containing methylsiloxane

AU - Hoshikawa, Yasuto

AU - Yasuda, Eiichi

AU - Onoki, Takamasa

AU - Akao, Masaru

AU - Tanabe, Yasuhiro

N1 - Funding Information: This work was supported by a Grant-in-Aid for Cooperative Research Project of Nationwide Joint-Use Research Institutes on Development Base of Joining Technology for New Metallic Glasses and Inorganic Materials and was partially supported by a Grant-in-Aid for Young Scientists (B), 18760516, 2006, from The Ministry of Education, Culture, Sports, Science and Technology, Japan. The authors appreciated Mr. Hajime Ishii from the technical staffs of MSL for his help with the setup utilized by the Collaborative Research Project of Materials and Structures Laboratory, Tokyo Institute of Technology.

PY - 2008/11/25

Y1 - 2008/11/25

N2 - A bioactive coating of Ca-containing methylsiloxane on a titanium surface was investigated. The coatings have double-layered structure consisted of underlying methylsiloxane (MS) and with an incorporated Ca content methylsiloxane (MS-Ca) top layer. The top layer of MS-Ca was prepared from methyltriethoxysilane containing 2.5 mol% pentaethoxyniobium and 2.5 mol% pentaethoxytantalum followed by the addition of calcium nitrate tetrahydrate with the Ca/Si molar ratio of 0.05 to 0.5 to enhance the formation of bone-like apatite (BLA) in a simulated body fluid (SBF). The adhesive strength of the coating with a 0.05 Ca/Si ratio was 3.5 MPa, while the adhesive strength of the coating tended to decrease to 2 MPa with the increasing Ca content. The adhesive strength of the coating was related to the porosity, which depended on the Ca content.

AB - A bioactive coating of Ca-containing methylsiloxane on a titanium surface was investigated. The coatings have double-layered structure consisted of underlying methylsiloxane (MS) and with an incorporated Ca content methylsiloxane (MS-Ca) top layer. The top layer of MS-Ca was prepared from methyltriethoxysilane containing 2.5 mol% pentaethoxyniobium and 2.5 mol% pentaethoxytantalum followed by the addition of calcium nitrate tetrahydrate with the Ca/Si molar ratio of 0.05 to 0.5 to enhance the formation of bone-like apatite (BLA) in a simulated body fluid (SBF). The adhesive strength of the coating with a 0.05 Ca/Si ratio was 3.5 MPa, while the adhesive strength of the coating tended to decrease to 2 MPa with the increasing Ca content. The adhesive strength of the coating was related to the porosity, which depended on the Ca content.

KW - Adhesive strength

KW - Bioactive coating

KW - Bone-like apatite

KW - Methylsiloxane

KW - Methyltriethoxysilane

KW - Sol-gel method

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JO - Surface and Coatings Technology

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ER -

Bioactive coating on titanium using calcium-containing methylsiloxane

Abstract

Keywords

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